/**
 * gwt-validator 
 *
 * Copyright (C) 2006  Nikolaus Rumm, Christian Simonutti
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */
package gwt.validator.client.action;

import gwt.validator.client.exception.ValidationIssue;

import com.google.gwt.user.client.ui.Widget;

/**
 * Action that sets a css style on the given text widget depending on the
 * presence of validation issues.
 * 
 * @author <a href="mailto:nikolaus.rumm@gmail.com">Nikolaus Rumm</a>
 */
public class SetStyleAction extends BaseAction {

	/**
	 * The style that will be displayed if there are no issues
	 */
	private String successStyle;

	/**
	 * The style that will be displayed if there are some issues
	 */
	private String errorStyle;

	private Widget widget;

	/**
	 * Constructor
	 * 
	 * @param aWidget
	 *            The widget that will get the css style
	 * @param aSuccessStyle
	 *            The css style that will be set in case of an error-free
	 *            validation
	 * @param aErrorStyle
	 *            The css style that will be set in case of validation issues
	 */
	public SetStyleAction(Widget aWidget, String aSuccessStyle,
			String aErrorStyle) {
		this.checkNotNull(aWidget);
		this.checkNotNull(aSuccessStyle);
		this.checkNotNull(aErrorStyle);

		this.widget = aWidget;
		this.successStyle = aSuccessStyle;
		this.errorStyle = aErrorStyle;
	}

	public String getErrorStyle() {
		return errorStyle;
	}

	public String getSuccessStyle() {
		return successStyle;
	}

	public Widget getWidget() {
		return widget;
	}

	/**
	 * @see Action#onSuccess()
	 */
	public void onSuccess() {
		this.widget.setStyleName(this.successStyle);
	}

	/**
	 * @see Action#onFailure(ValidationIssue)
	 */
	public void onFailure(ValidationIssue aIssue) {
		this.widget.setStyleName(this.errorStyle);
	}
}
